Type-writing machine.



PATENTED MAR. 419, 1907.'

J. B. sEooR. 'TYPBWRITING MACHINE.

APPLICATION FILED AUG. 10, 1904.

SHEETS-SHEET 1.

J. E. sEooE.

EATENTED MAE. 19, 1907. TYPE WRITING MACHINE.

APPLICATION FILED AUGEIO, 1904'.

3 SHEETS-SHEET 2.l

APMLENTBD MAR. 19, `1907.`

yJ. Bgsoo. TYPE WRITING MACHINE'. APPLICATION FILED AUG. 10,'19 04.

a sums-'salam' s.

Tondi 4wher-11)it Wawy concern:

@ 1-*PATENT JEROME n.'.snCoR, or DERBY, Co'rnvECTICIrr, .iss'IGNoR ToTYPEWRITER COMPANY, o1# DERBY,- CONNECTICUT,v A eoEPoRATioN 'or iowa; y,

.Be it' known that LJERCME B. SECon, a

`citizen the United States, and a resident of'Derby, in the county ofNew Haven and v'State' of Connecticut, have invented anew `andyuseulImprovement in Type-Writing Machines, of Whichthe'following is aspecilication This invention relates, rst, to 'an improvedv mannerofmounting and securingthe hangers -in which the ,type-bars arefulcrumed approximately in a'vertical are concentric with theprinting-point, and, secondly, to a devicey f versal lfor Yactuating thecarriage-release by impact of the'heel of a typebar at the end of eachprint' stroke, consisting in part of a uniar curved concentrically withthe arc on f which the type bar- Abrackets are panying` drawings, inwhich Figure 1 is a transverse vertical section of the parts of-atypefwriting machine to which my improvements relate, showing a typebarapproaching printing position. Figs. 2 and 2 are detail sections on theline Fig. 3, looking in direction of the arrow, illustrat-4 ing the modeof mounting the end type-.brackets in steps inthe bridge or makingseveral of the type-bar brackets successively shorter. toward each endof thearc, so as to bring the fulcrums of the'endl Vtype-barssuccessively nearer they bridgev on which ltheir brackets are mounted;Fig. 3 is' a front view omitting the 'key-levers and their accessoriesand Showing one t e-.bar in printing position, six of'thet earbrackets,. and a number of vthe radial sots orgrooves'in ythe bridgeiorthe reception of type-bar brackets. Fig. 4 is a front view of the-curvedoscillating universal barand the rock-shaft on whichit is .mountedl Fig.5 is-a side view of the same,

vertical section of the curved universalbarf Specification of LettersEatent. l 'Application l-ed August 10, 19H4. Serial No. 220,244. I

and a dust-guard attached thereto.N 1'7 i is a perspective view.of atype-bar y TYPE-waning; MACHINE.

' .Patented March 19, 1907.

crumed bracket Orhanger detached'. 8

is a detail' elevation of. the heel portion of a type-bar.

. type-brackets aremounted.

2 represents the universal bar curved concentri'call with the-printing-point an'd the arc onl W 'ch the typ andhaving short rigidVarms 3 projecting ridge to guide the universal bar inavbackward-andforward reciprocating movement. Hori- 1 representsnthe liride 'or carriage-track- '.portlon', of the machine` ame, on? which thee-bars areulcrumed zontal arms 4, mounted rigidly on the ends of theuniversal bal,` 2,"are attached at their front ends to the upper ends ofvertical arms 5, keyed tothe ends of a rock-shaft 6, on 'i i which isalso keyedv a rigid 'arm 7, projecting downward and connected by a rod 8with the. upper end of the vertical arm 9 of the space-key lever 10 orrock-shaft operated .l

thereby. The automatic release movementUA in printing is effected bycontact of the typebar heel with the, universal bal- 2, 'as willpresently be described.

l11 in 'cates the platen, and 12 a'portion of I the carriage runningonways 13 14.

15 indicates the carriage-feedrack'and 16 17 its ycontrolling-pinion andrelease-gear mounted in bearings on the standards 18 19.

' 20 indicates -a plate rocking on horizontal ivots 20iL and carrying apair of escapementogs 21 21a, operating in customary manner to engagealternately with the` gear-wheel 17A to permit step-by-step motion ofthe carriage 4when said dogs are tripped by movement 'of the universalbar. A' tension-spring 22 re- .stores the rocking plate 20 to normalafter each stroke of the universal bar, retracting the space-dog 21, andpermitting engagement of the trip-dog 21.l

.2Ob represents an-arm pivoted at 20c to the plate 20 and formedwith-two projecting lugs 20d, working through guide-openings in the istandard 1,8, oneof which lugs receives con tact of 'a tappet' 23,carried by the universal bar 2'. The said tappet is elastic `and of theico reilexedform shown and is strained by a setscrew-24, threaded in oneci its members and bearing against the other, so as to' enable accurateadjustmentof its end relatively to the lug "20d, with which it contacts,to trip the 2()c between the arm 2Ob and the rocking plate 20 permitsthe slight angular motion between .the said arm 20D and plate .20consequent on the rockingoi the latter on the pivot 20a, while theforward end of arm 20b is guided in its back-and-iorth motion. by theopenings in the standard 18.

My improved type-bar bracket 25 is constituted or' three plates, thecenter one proj ecting so as to form a rigid .tongue26 on theattaching-face, Figs. 1 and' 7, fitting in grooves or slots 26?* in therace. of the bridge 1, arranged radially on an arc concentric with theprinting-point, as represented in Fig. 3, Where are shown for thepurpose of illustration one type-bar 29.in printing position, six of thetype-bar brackets 25, and

venience of manufacture I make this `nut in` the form of a block or pinheld in apertures formed therefor in the cheeks or side plates of thebracket, the center plate being bored in line with the threaded'aperture of the nut to receive the screw 27 and in register with shortradial slots 26hr in the bridge communicating with the radialvtongue-grooves 26, as shown in Fig. 1.

The iulcrum-pi'vot by which the respective type-bars are mounted intheir brackets is shown at30,'and at 31 thepivot attachment for theconnecting-rod 32, through which the type-bar is operated by means o? abell-crank the esca lever 33,.fulcrumed in a bracket 34, and a verticalrod 35, pivoted thereto and to the type-key .lever 36. The key-levers 36are fu crumed at the rear ends in' customary manner on a transverse bar87 and are susitained in normal position by tension-springs 38. Tooperate the universal bar 2 and trip ement-dogs at each printing-stroke,the hee s bar 2 at each Fig. 1.

40 represents the improved dust-guard, consisting oi a curved lateattached to and carried by the universa bar 2 and projecting forwardover the type-bar pivots, as shown best in Fig. 6.

In order to aHord to the type-bars more kfreedom from collision andprevent interferprinting stroke, as illustrated in ence of the type whenat rest-onthepillow,

six (more or less) of the type-bar brackets at veach end of the rangeare seated on graduated j "step's, as

illustrated in Fig. 2fso` that the typebar fulcrums toward each end ofthe series of the type-bars are formed with shoulders 39, which engagewith the universalk will approach 'step by step nearer horizontally tothe'bridge or carriage-track. Another and equivalent way ofaccomplishing this object is to cut away or shorten the typebarbrackets,` as illustrated in Fig. 2, instead of cutting away the bridge.In order to accommodate this approximation of the end type-bars to thevertical plane of the carriage-track, the front edge of the universalbar 2 is formed at each end with a corresponding series of steps 2, asshown in Figs. 1 and 5, to` receive the impact of the shoulders 39 onthe heels of the respective type-bars.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

1. In combination with the frame of a type-writing machine, a set oftype-bars mounted on fulerums arranged approximately in a vertical arc,with the central type-bar fulcrurns in la vertical plane and with thosenear each end of the series approaching nearer the vertical plane of thecarriage-track, a universal bar curved approximately on a vertical arcconcentric with that of the type-bar fulerums, mounted to slide back andforthvin the machine-frame, having a front working face inclinedbackward al each end and adapted to receive impact from the severaltype-bars in their printing stroke and a suitable carriage-feedescapement device tripped by the sliding movement thereby imparted tothe universal bar, substantially as described.

2. In a front-strike type-writing machine, the combinationv ofa fixedframe-bridge, a set of type-bars on fulcrums in a vertical are inhangers mounted on the front of said bridge, a universal bar curved onan are substantially concentric with that of the typebar fulcrums,mounted in front of said bridge and slidable back and forth relativelythereto, and actuated by impact of projections on heels of thetype-bars, rigid guide-arms projecting backward from the universal barthrough apertures in the bridge, a tappet-bar rigidly xed to theuniversal bar and projecting backward therefrom through an aperture inthe bridge and a suitable carriagefeed escapement actuated by saidtappet-bar, substantially as described.

3. In a front-strike type-Writing machine,

f the combination of a transverse bridge fixed in the inachine-frame, aset of type-bars mounted on fulcrums in a' vertical arc on hangerssecured to the said bridge, a universal bar curved in a vertical arcsubstantially concentric with that of the t e-b ar fulcrums, mounted infront of the bridgle, movable back and forth relatively thereto andactuated by impact of projections on the heels of the typebars, rigidarms projecting forward from the universal bar, a release-key lever andconnections therefrom to said forwardlyprojecting arms, a tappet-barprojecting backward IOO IIO

. a universal bar mounted to slide back and approximately in a' verticalarc, a universal opening inthe bridge, a hori'z'o'nt'alslide'proximately vertical plane,`a universal bar f mounted to move in anapproximately hori- 'sition of .the type-bar fulcrums, andfan esffzontall motion of the universal bar, substanj ZO y , parallelWith-thatof thetype-'bar fulcrums, a

forth and actuated bythe several type-bars in their printing stroke,said universal bar being formed with steps or' notches-toward its endsto .correspond with the graduated pocapement mechanism'actuated by thehoritially as described.

5. In combination with la type-Writingmachine frame having a suitablebridge; a set of type-bars mounted on fulcrums ,arrangedbar curved-vertically in an arc substantially tappet-arm projecting rearvvardkthroughlardi 1f e t at its forward end in position ktgreceive t eimpactjof, the universal-bar "tappeti,- a vertical plate pivot'ed by itslowerpar and plvoted by its up er end Itothe' rear end-y of thehorizontal sli e to'v support vthe same While permitting itsback-and-forth Amove-l ment, and a spring vrester-'in the slidetoitsnormal front position after it as been'p'ressed backward by theuniversal-bar tappet, sube stantially as described.

6, In combination with a type-Writingmachine frame havin a suitablelbridge; a set of type-bars mounte on'ulcrums inanl apzontal directionand actuated by impact of the several type-bars, a tappet-arm mountedvon said universal bar4 extending rearward tl rough an openino in thebridge and havin an elastic rear enda of U` shape', a horizonta slideguided in position to receive the impact of the Ufshaped end ofthetappet-arm, a spring tending to move and hold the said slide in itsnormal forward position-and a set-screwin the elastic U-shaped end oftappet-arm serving to'regulate the prominence of its operating end whichengages the horizontal slide, substantially asy described.,

7. The combination of a series of type-bars Amounted on ulcrums arran edin a vertical are, a universal bar curve m an arc ap# proximatelyparallel with the type-bar fulcrums actuated by the'impact of thetypebars and havin kguide-armsv and a tappetarm projecting om its rearface and a machine-frame bridge having guide-openings in' which tliiegui ing-.arms and'tappet-'arm of the universal bar slide/in thereciprocat'# king` movement ofsaidbar, substantially asl described. l

8. The combinationof a series of typeebar's I mounted on' I )racketsr.arranged approximately in a vertical arc a universal bar V curvedconcentrically with the are in which the type-bar-brackets are mounted,actuated by contact of the several type-bars in their .printing movementand carrying a tappet to actu'atel the carriage release vmechanism anda` dust-guard consisting of a curved plate carried by theuniversal bar,inclined doWn- Ward toward the front. and extending over 1n the frameoblique sho'ulde'rs on the type-bar brackets,

'substantially as shown yand described.

i. v9. v'Atype-bar bracket comprising a air clamped between-saidcheek-plates, provided with lugs projectin fromv yits opposite sidesfintoI apertures int e cheek-plates and pro-v truding beyond thefrontedge of the cheekplates so as toform a projecting tongue, and

of apertured cheek-plates and a central p ate` aving a threaded aperture.in its protruding edge t'o receive a clamp-screw; in combination With aclamp-screw and a bridge grooved and slotted' to receive such projectingt gue and clamp-screw substantially as an' for the purposes set forth.

. JEROME B. SECOR. A Witnesses:

J. P. CLARKE,

M. A. KUPPE'R.

